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Ellerbroek, J. (author), Visser, M. (author), Van Dam, S.B.J. (author), Van Paassen, M.M. (author), Mulder, M. (author)In the context of the Next Generation Air Transportation System and Single European Sky ATM Research future airspace programs, this paper describes a concept for an airborne separation assurance display that is designed to aid pilots in their task of self-separation, by visualizing the possibilities for conflict resolution that the airspace...journal article 2011
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Evangelisti, M. (author), Sorop, T.G. (author), Bakharev, O.N. (author), Visser, D. (author), Hillier, A.D. (author), Alonso, J.J. (author), Haase, M. (author), Boatner, L.A. (author), De Jongh, L.J. (author)Low-temperature magnetic susceptibility and heat-capacity measurements on nanoparticles (d? 2.6 nm) of the antiferromagnetic compounds DyPO4 (TN=3.4 K) and GdPO4 (TN=0.77 K) provide clear demonstrations of finite-size effects, which limit the divergence of the magnetic correlation lengths, thereby suppressing the bulk long-range magnetic...journal article 2011
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Visser, W. (author), Hindriks, K.V. (author), Jonker, C.M. (author)This paper presents an argumentation-based framework for the modelling of, and automated reasoning about multi-attribute preferences of a qualitative nature. The framework presents preferences according to the lexicographic ordering that is well-understood by humans. Preferences are derived in part from knowledge. Knowledge, however, may be...journal article 2011
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Zhu, Y. (author), Visser, P.J. (author), Vrijling, J.K. (author), Wang, G.Q. (author)Breaching of embankments has recently drawn more and more attention due to its importance in the development of early warning systems for embankment failures, in the evacuation plans of people at risk, in the design method of embankments based on a risk-approach, etc. The erosion process observed during embankment breaching tests in the...journal article 2011
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Pang, X. (author), Fischer, D.G. (author), Visser, T.D. (author)The Gouy phase, sometimes called the phase anomaly, is the remarkable effect that in the region of focus a converging wave field undergoes a rapid phase change by an amount of ?, compared to the phase of a plane wave of the same frequency. This phenomenon plays a crucial role in any application where fields are focused, such as optical coherence...journal article 2012
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Gan, C.H. (author), Gu, Y. (author), Visser, T.D. (author), Gbur, G. (author)Simulations are presented that demonstrate that the global state of spatial coherence of an optical wavefield can be altered on transmission through an array of subwavelength-sized holes in a metal plate that supports surface plasmons. It is found that the state of coherence of the emergent field strongly depends on the separation between the...journal article 2012
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Raghunathan, S.B. (author), Gan, C.H. (author), Van Dijk, T. (author), Ea Kim, B. (author), Schouten, H.F. (author), Ubachs, W. (author), Lalanne, P. (author), Visser, T.D. (author)We report a plasmon steering method that enables us to dynamically control the direction of surface plasmons generated by a two-mode slit in a thin metal film. By varying the phase between different coherent beams that are incident on the slit, individual waveguide modes are excited. Different linear combinations of the two modes lead to...journal article 2012
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Palacios-Aguilera, N.B. (author), Bastemeijer, J. (author), Mollinger, J.R. (author), Bossche, A. (author), Mokkapati, V.R.S.S. (author), Visser, H.A. (author), Akkerman, R. (author)Nowadays, micro- and nanochips are usually fabricated with Silicon and/or glass. A simple, low-cost and reliable integration packaging method that provides flexibility to the incorporation of electronic and fluidic devices into a system has not been fully developed yet. The use of Printed Circuit Board material as substrate to create dry film...journal article 2012
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Raghunathan, S.B. (author), Schouten, H.F. (author), Visser, T.D. (author)We demonstrate that coherence vortices, singularities of the correlation function, generally occur in partially coherent electromagnetic beams. In successive cross sections of Gaussian Schell-model beams, their locus is found to be a closed string. These coherence singularities have implications for both interference experiments and correlation...journal article 2012
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Medici, M. (author), Arfan Ikram, M. (author), Van der Lijn, F. (author), Den Heijer, T. (author), Vernooij, M.W. (author), Hofman, A. (author), Niessen, W.J. (author), Visser, T.J. (author), Breteler, M.M.B. (author), Peeters, R.P. (author)Background: Thyroid disorders are associated with an increased risk of cognitive impairment and Alzheimer's disease. Both small vessel disease and neurodegeneration have a role in the pathogenesis of cognitive impairment and Alzheimer's disease. Thyroid hormone receptor alpha (TR?) is the predominant TR in brain. The circadian clock gene REV-ERB...journal article 2012
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Gustus, A. (author), Stillfried, G. (author), Visser, J. (author), Jörntell, H. (author), Van der Smagt, P. (author)An overview of mathematical modelling of the human hand is given. We consider hand models from a specific background: rather than studying hands for surgical or similar goals, we target at providing a set of tools with which human grasping and manipulation capabilities can be studied, and hand functionality can be described. We do this by...journal article 2012
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Valcke, S.L.A. (author), Polder, R.B. (author), Nijland, T.G. (author), Leegwater, G.A. (author), Visser, J.H.M. (author), Bigaj-van Vliet, A.J. (author)Most high filler concrete studies are based on relatively high contents of powder (cement + filler) (>400 kg m-3). This paper aims to increase the total fly ash content relative to the clinker content, while simultaneously minimizing the total powder content in the concrete to values lower than 300 kg m-3. The motivation for decreasing the total...journal article 2012
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Raghunathan, S.B. (author), Schouten, H.F. (author), Visser, T.D. (author)It was recently shown that so-called coherence vortices, singularities of the two-point correlation function, generally occur in partially coherent electromagnetic beams. We study the three-dimensional structure of these singularities and show that in successive cross sections of a beam a rich variety of topological reactions takes place. These...journal article 2013
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Pang, X. (author), Visser, T.D. (author)The Gouy phase, sometimes called the focal phase anomaly, is the curious effect that in the vicinity of its focus a diffracted field, compared to a non-diffracted, converging spherical wave of the same frequency, undergoes a rapid phase change by an amount of ?. We theoretically investigate the phase behavior and the polarization ellipse of a...journal article 2013
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Raghunathan, S.B. (author), Schouten, H.F. (author), Ubachs, W. (author), Ea Kim, B. (author), Gan, C.H. (author), Visser, T.D. (author)Dynamic control of the direction of radiation of the light emanating from a subwavelength slit carved out of a thin metal film is experimentally demonstrated. This is achieved by selective excitation of the individual guided modes in the slit by setting the phase of three coherent laser beams. By changing the voltage across a piezoelement, we...journal article 2013
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Fuchs, M.J. (author), Bouman, J. (author), Broerse, D.B.T. (author), Visser, P.N.A.M. (author), Vermeersen, L.L.A. (author)The Japan Tohoku-Oki earthquake (9.0 Mw) of 11 March 2011 has left signatures in the Earth's gravity field that are detectable by data of the Gravity field Recovery and Climate Experiment (GRACE) mission. Because the European Space Agency's (ESA) satellite gravity mission Gravity field and steady-state Ocean Circulation Explorer (GOCE)—launched...journal article 2013
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Straver, R. (author), Sistermans, E.A. (author), Holstege, H. (author), Visser, A. (author), Oudejans, C.B.M. (author), Reinders, M.J.T. (author)Genetic disorders can be detected by prenatal diagnosis using Chorionic Villus Sampling, but the 1:100 chance to result in miscarriage restricts the use to fetuses that are suspected to have an aberration. Detection of trisomy 21 cases noninvasively is now possible owing to the upswing of next-generation sequencing (NGS) because a small...journal article 2013
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Pang, X. (author), Fischer, D.G. (author), Visser, T.D. (author)We study the Gouy phase of a scalar wavefield that is focused by a lens suffering from primary spherical aberration. It is found that the Gouy phase has different behaviors at the two sides of the intensity maximum. This results in a systematic increase of the successive wavefront spacings around the diffraction focus. Since all lenses have some...journal article 2013
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Athanasiou, Dimitrios (author), Nugroho, Ariadi (author), Visser, Joost (author), Zaidman, A.E. (author)Automated testing is a basic principle of agile development. Its benefits include early defect detection, defect causelocalization and removal of fear to apply changes to the code. Therefore, maintaining high quality test code is essential. This study introduces a model that assesses test code quality by combining source code metrics that...journal article 2014
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Visser, J.G.S.N. (author), Nemoto, T. (author), Browne, M. (author)This review paper discusses the latest developments in internet shopping, home delivery and the potential impacts on city logistics and alternative vehicle use. The review has illustrated the rapid changes during the past few years and the potentially important impacts on patterns of transport within urban areas. Some of the changes result in...journal article 2014